When working with STL containers, smart pointers, and boost signals, it is nice to debug directly into your own code without making side trips into container internals. These configs also provide custom object views which make debugging easier in MSVC.
You need to reference these files from your project or copy them into
<user>\Documents\Visual Studio ####\Visualizers. If you copy them, you must copy the files directly, VS will not recognize any files in subfolders. VS will usually detect edits to registered files when starting a debug session, but requires a restart to register a new configuration file.